[Bug ipa/117892] [15 Regression] ICE on valid code at -O1 and above on x86_64-linux-gnu: in single_succ_edge, at basic-block.h:332 since r15-5336-gcee7d080d5c2a5

[hubicka at ucw dot cz via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117892

--- Comment #4 from Jan Hubicka <hubicka at ucw dot cz> ---
>   Deleted dead store: # .MEM_5 = VDEF <.MEM_3(D)>
> That started in GCC 12.
That is weird. I would expect CFG verification run between passes to
catch this...